Air purifier



FIG. 1 is a top perspective view of air purifier showing a first embodiment of my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevation view thereof; and

FIG. 5 is a side elevation view thereof showing the side opposite from the side shown in FIG. 4.

FIG. 6 is a top perspective view of air purifier showing a second embodiment of my new design;

FIG. 7 is a front elevation view of FIG. 6;

FIG. 8 is a top plan view of FIG. 6;

FIG. 9 is a side elevation view of FIG. 6; and,

FIG. 10 is a side elevation view of FIG. 6 showing the side opposite from the side shown in FIG. 9.

The broken line showing of environmental structure in FIGS. 1-10 is for illustrative purposes only and form no part of the claimed design.

The rear and bottom view of the embodiments form no part of the claimed design. 

The ornamental design for an air purifier, as shown and described. 